(polkit-gnome-authentication-agent-1:1604): GLib-CRITICAL **: g_once_init_leave: assertion `initialization_value != 0' failed
(brasero:1768): Gtk-CRITICAL **: gtk_widget_show: assertion `GTK_IS_WIDGET (widget)' failed
(gnome-terminal:2051): Gtk-CRITICAL **: gtk_accel_map_unlock_path: assertion `entry != NULL && entry->lock_count > 0' failed
(brasero:2036): Gtk-CRITICAL **: gtk_widget_show: assertion `GTK_IS_WIDGET (widget)' failed
(brasero:1768): Gtk-CRITICAL **: gtk_widget_show: assertion `GTK_IS_WIDGET (widget)' failed
(brasero:1768): Gtk-CRITICAL **: gtk_window_present_with_time: assertion `GTK_IS_WINDOW (window)' failed